pola-rs/polars py-1.11.0

Python Polars 1.11.0

on GitHub

🚀 Performance improvements

• Improve var/cov/corr performance (#19381)
• Reduce memcopy in parquet (#19350)
• Optimize array and list gather (#19327)

✨ Enhancements

• Various Schema improvements (equality/init dtype checks) (#19379)
• AssumeRole support for AWS Credential Provider (#19346)
• Added escape_regex operation to the str namespace and as a global function (#19257)
• Improve read_database_uri typing (#19334)

🐞 Bug fixes

• Allow .get(null) in groupby context (#19401)
• Fix include_file_paths and with_row_index for streaming CSV scan (#19394)
• Flaky parametric parquet test (#19393)
• Release GIL in gather_with_series() and friend (#19383)
• Raise on data mismatch in str.json_decode (#19347)
• Ensure Python version matches version used to serialize credential provider (#19375)
• Capture groups should be ignored in replace_all when literal=True (#19366)
• Ignore Parquet is_{min,max}_value_exact when set to true (#19344)
• Projection pushdown was ignored by include_file_paths (#19341)

📖 Documentation

• Spurious import in example (#19398)
• Tiny correction post dask-expr (#19354)

📦 Build system

• Revert PyO3 version back to 0.21 (#19376)

🛠️ Other improvements

• Expose group_by_dynamic in pyir (#19385)
• Add AlignedBytes types (#19308)
• Remove unsued bytes->BytesIO conversion (#19369)
• Improve error message for Zero-Field Structs with Parquet (#19370)
• Reduce memcopy in parquet (#19350)

Thank you to all our contributors for making this release possible!
@alexander-beedie, @barak1412, @benrutter, @coastalwhite, @corwinjoy, @itamarst, @max-muoto, @nameexhaustion, @orlp, @ritchie46, @stinodego, @wence- and @wolfgang-noichl